362 APPENDIX. 
excavated ; while the aperture is of considerable length, 
and the columella at the base suddenly arched. Long. 
4 inch.—Hab. Esquimalt Harbour, Vancouver Island. 
(Brit. Mus.) 
HELICID 2. 
Helix Townsendiana. (Lea.) Sumass Prairie, British Columbia. 
— fidelis. (Gray.) Common east and west of the Cascades ; occurs 
6,000 feet above sea level. 
— Dupetit-Thouarse. (Desch.) Sumass Prairie and Vancouver Island. 
— vyillicata. (Forbes.) Sumass Prairie and Vancouver Island. 
‘— Columbiana. (Lea.) Banks of the Fraser River. 
SUCCINID. 
Succinea rusticata, (Gould.) Sumass Prairie. 
Succinea Hawkinsii. (Baird: Nov. Sp.) 
Testa elongato-obovata, tenui, pellucida, nitida, 
undulato-striata, rubella, intus margaritacea, spira acuta; 
anfractibus quatuor, convexis, ultimo duos trientes 
longitudinis teste adequante, sutura impressa, apertura 
ovali, inferne effusa. 
This shell is of an elegant form, and of a pinkish 
colour, with the interior of a pearly lustre. It is smooth 
and shining, but marked with waved strie of lines of 
growth. It resembles very much in figure the Succinea 
Pfeifferi of Europe, but is of a still more elegant shape, 
and of a brighter hue. 
I have named it after Lieut.-Col. Hawkins, R. E., 
Commissioner of the British North-American Boundary 
Commission. Long. } inch; lat. } inch.—Hab, Lake 
Osoyoos, British Columbia. (Brit. Mus.) 
